Memoize

A small cool memoization tool for JS modules

Usage

Basic usage

const memoize = require('@Jony-Y/memoize');
const heavyLifting = memoize((item, items) =>  {
  console.log('Entered');
  return items.filter(i => i === item);
});

const items = [1,2,3,4,5,6,7,5,4,7,2,4,5,7,7,8,5,4,3];
console.log(heavyLifting(7, items));
// Entered
// [7,7,7]
console.log(heavyLifting(7, items));
// [7,7,7]
console.log(heavyLifting(1, items));
// Entered
// [1]
console.log(heavyLifting(1, items));
// [1]

Custom equalizer

You can also define your custom equal function

const memoize = require('@Jony-Y/memoize');
const isEqual = require('lodash/isEqual')
const heavyLifting = memoize((item, items) =>  {
  console.log('Entered');
  return items.filter(i => i === item);
}, isEqual);

const items = [1,2,3,4,5,6,7,5,4,7,2,4,5,7,7,8,5,4,3];
console.log(heavyLifting(7, items));
// Entered
// [7,7,7]
console.log(heavyLifting(7, items));
// [7,7,7]
console.log(heavyLifting(1, items));
// Entered
// [1]
console.log(heavyLifting(1, items));
// [1]

Changelog

See changelog